At One Click Purchasing, we are your reliable source for the NSN part B390 manufactured by Pioneer Aerospace Corp. We carry a wide range of popular NSN items on our website, including Spring Assembly like part number B390 which is listed with the NSN 1670007199720 for easy identification. If you are interested in B390 item, then take the advantage of our online RFQ service, or peruse our website as you see fit to find other items of interest that you may wish to learn more about.